Method is_client_connected

Lib/test/test_ftplib.py:753–760

()

        self.client.quit()

        def is_client_connected():
            if self.client.sock is None:
                return False
            try:
                self.client.sendcmd('noop')
            except (OSError, EOFError):
                return False
            return True

        # base test
        with ftplib.FTP(timeout=TIMEOUT) as self.client: